From 1eb8f3275525e65b7c9915006f84f1fc5cc5e8be Mon Sep 17 00:00:00 2001
From: DL6ER <dl6er@dl6er.de>
Date: Wed, 25 Jan 2017 10:13:51 +0100
Subject: [PATCH] Allow omitting host name

---
 scripts/pi-hole/php/savesettings.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/pi-hole/php/savesettings.php b/scripts/pi-hole/php/savesettings.php
index 748002a9..5480dd0e 100644
--- a/scripts/pi-hole/php/savesettings.php
+++ b/scripts/pi-hole/php/savesettings.php
@@ -337,7 +337,7 @@ function validMAC($mac_addr)
 					{
 						$error .= "IP address (".htmlentities($ip).") is invalid!<br>";
 					}
-					if(!validDomain($hostname))
+					if(!validDomain($hostname) && strlen($hostname) > 0)
 					{
 						$error .= "Host name (".htmlentities($hostname).") is invalid!<br>";
 					}